Discover the robustness of SCM440, SCM435, 4130, 4140, and 4145 alloy steel with our precision-forged bars, shafts, and parts designed for ultimate durability and performance.
Premium Forged Alloy Steel Round Bar 4140 - engineered for strength and reliability in demanding applications.
1.7225 High-Grade Alloy Steel - recognized for supreme quality and resilience.
Hot Forging Steel Bars - crafted for superior mechanical properties and optimal performance.
High-Quality Forged Parts - built to withstand rigorous stress and strain.
SCM440, SCM435, 4130, 4140, 4145 Premium Forged Bars - perfect for heavy-duty applications.
1. Chemical Composition (%): Meticulously formulated for enhanced strength and durability.
| Grade |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
| 42CrMo4 |
0.38-0.45 |
0.17-0.37 |
0.40-0.70 |
≤0.035 |
≤0.035 |
0.90-1.20 |
0.15-0.25 |
| 1.7225 |
0.38-0.45 |
≤0.40 |
0.60-0.90 |
≤0.025 |
≤0.035 |
0.90-1.20 |
0.15-0.30 |
| 4140 |
0.38-0.43 |
0.15-0.35 |
0.75-1.00 |
≤0.035 |
≤0.040 |
0.80-1.10 |
0.15-0.25 |
2. Available Sizes: Extensive range tailored to meet diverse needs.
Round Dimensions: Diameter starting from 1
6 mm
to 1000 mm - customizable to specific requirements.
16 mm
to 3
50 mm with hot rolled supply condition.
50mm in hot rolled condition;
200-1000mm in forged supply condition - precision-engineered for excellence.
3. Delivery Condition:
Options available: Hot rolled or forged, peeled or black surface, annealed or QT. Delivery Condition: Hot rolled or forged, peeled or black surface, annealed or QT - tailored to your specific needs.
4. Applications:
Ideal for statically and dynamically stressed components in vehicles, engines, and machines. Perfect for large cross-sections, crankshafts, and gears.
5. Heat Treatment:
Soft Annealing: Heat to 680-720°C, then cool slowly for optimal toughness.
Hardness after annealing: Maximum 241 HB - ensuring durability and wear resistance.
Hardening: Heat to 820-850 °C for superior strength.
Normalizing Temperature: 840-880°C - enhancing structural uniformity.
Tempering: 540-680°C - for optimal balance of strength and ductility.
6. Inspection: 100% Ultrasonic inspection to meet SEP1921-84, GR.3 CLASS C/C standards - ensuring impeccable quality.
7. Packing Situation: Standard seaworthy packing or customized as per customer requirements - ensuring safe delivery.
8. Delivery Time: 30 days after order confirmation - prompt and reliable service. 30 days after order confirmation - we value your time.
9. Process: Advanced Process: EAF, LF, VD (as necessary), UT, Peeled (optional), Turned (optional), Heat Treatment (optional) - comprehensive and precise manufacturing. EAF+LF+VD (necessary) + UT + Peeled (optional) + Turned (optional) + Heat Treatment (optional) - ensuring the highest standards.
Keywords: Optimized forged steel bars, forging parts, forging rings, 4140 and 42CrMo4 steel bars, hot forging excellence, and more - engineered for peak performance and reliability.
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